diff --git a/arch/ppc/kernel/traps.c b/arch/ppc/kernel/traps.c
index c65731e8bc657cb2edbcec90b8050ef813846803..2ca8ecfeefd978058bb65d6ca3d526d1e640a483 100644
--- a/arch/ppc/kernel/traps.c
+++ b/arch/ppc/kernel/traps.c
@@ -81,8 +81,10 @@ void die(const char * str, struct pt_regs * fp, long err)
 	console_verbose();
 	spin_lock_irq(&die_lock);
 #ifdef CONFIG_PMAC_BACKLIGHT
-	set_backlight_enable(1);
-	set_backlight_level(BACKLIGHT_MAX);
+	if (_machine == _MACH_Pmac) {
+		set_backlight_enable(1);
+		set_backlight_level(BACKLIGHT_MAX);
+	}
 #endif
 	printk("Oops: %s, sig: %ld [#%d]\n", str, err, ++die_counter);
 #ifdef CONFIG_PREEMPT